Creating airplane mode proof Xamarin applications
summary
A Xamarin.Forms client plus an ASP.NET Core backend on Azure demonstrates offline resilience: uses Akavache for disk caching (demo uses a 5‑second expiry), Polly for policies (3 retries with exponential backoff and timeouts), and an ETag middleware so conditional requests skip unchanged payloads. FFImageLoading reduces memory and deduplicates downloads; Refit removes HTTP boilerplate; the Connectivity plugin detects network state. The demo recovers from a 500 error to a 200 after retries and shows cached data instantly.
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chapters (10)
- 0:00Start
- 4:44Layers of Mobile Development
- 9:04Network constraints
- 18:43And Of Course...
- 20:21Avengers Assemble!
- 28:30FFImageLoading
- 31:34Connectivity Plugin
- 32:48Refit
- 50:19Akavache: Lessons Learned
- 59:07HTTP Conditional Requests
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